When applying "qos apply policy VoIP inbound" or "packet-filter 30 inbound" to the ports, the first ports got it. But suddenly I receive errors, when adding additional ones. Either

[GigabitEthernet1/0/6] packet-filter 30 inbound
PFLT/5/FLT_SET_POLICY_RESOURCE_FAIL: Failed to apply the filter policy to or refresh the filter policy 30 on interface GigabitEthernet1/0/6 due to lack of resources.face GigabitEthernet 1/0/6